mirror of https://github.com/rusefi/lua.git
48 lines
1.2 KiB
C
48 lines
1.2 KiB
C
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char *rcs_auxlib="$Id: $";
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#include <stdio.h>
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#include "lua.h"
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void luaL_arg_check(int cond, char *funcname, int numarg, char *extramsg)
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{
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if (!cond) {
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char buff[100];
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if (extramsg == NULL)
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sprintf(buff, "bad argument #%d to function `%s'", numarg, funcname);
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else
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sprintf(buff, "bad argument #%d to function `%s' (%s)",
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numarg, funcname, extramsg);
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lua_error(buff);
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}
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}
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char *luaL_check_string (int numArg, char *funcname)
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{
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lua_Object o = lua_getparam(numArg);
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luaL_arg_check(lua_isstring(o), funcname, numArg, "string expected");
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return lua_getstring(o);
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}
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char *luaL_opt_string (int numArg, char *def, char *funcname)
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{
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return (lua_getparam(numArg) == LUA_NOOBJECT) ? def :
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luaL_check_string(numArg, funcname);
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}
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double luaL_check_number (int numArg, char *funcname)
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{
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lua_Object o = lua_getparam(numArg);
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luaL_arg_check(lua_isnumber(o), funcname, numArg, "number expected");
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return lua_getnumber(o);
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}
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double luaL_opt_number (int numArg, double def, char *funcname)
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{
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return (lua_getparam(numArg) == LUA_NOOBJECT) ? def :
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luaL_check_number(numArg, funcname);
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}
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